“Nikki wears her heart on her sleeve and it’s often got her in trouble, she knows the public have seen her at her very worst when her tantrums have got out of control and she wants to explore why it happens.

“She hopes it will make people understand her a bit better.”

Nikki will also open up about her battle with anorexia for over a decade and her phobia of eating more than 400 calories.

In 2013, the troubled telly star revealed the shocking extent of her struggle with anorexia and depression – confessing she was sectioned after overdosing on pills.

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